1 / 20

Urban Forest Management: Selection – Planting – Protection

Urban Forest Management: Selection – Planting – Protection. Rick W. Harper Cornell Coop. Extension – Westchester Co. rwh26@cornell.edu. Historical Perspective. From 1860-1910 Forests East of the Mississippi Were Cleared = 13.3 sq. mi./day Forest Cover From 70% to 20%. US Forest Service.

yelena
Download Presentation

Urban Forest Management: Selection – Planting – Protection

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Urban Forest Management: Selection – Planting – Protection Rick W. Harper Cornell Coop. Extension – Westchester Co. rwh26@cornell.edu

  2. Historical Perspective • From 1860-1910 Forests East of the Mississippi Were Cleared = 13.3 sq. mi./day • Forest Cover From 70% to 20% US Forest Service www.fhwa.dot.gov

  3. The Cities of Yonkers, • White Plains • Early 1900’s • No Immediate Trees Photo credit: Mr. J. Nicoletti, Commissioner of Public Works The City of White Plains Source: Historic White Plains

  4. Present Day Perspective • 59% of NYS is Forested • 38.4% of Tree Cover in Urban Centers • 70% Pop. Located in Urban Communities

  5. Map by Dan Bogan

  6. Selection Recommended Urban Trees www.hort.cornell.edu/uhi Dr. N. Bassuk Landscape Tree Factsheets ForestResources@PSU.edu Dr. H. Gerhold

  7. Protection • Protecting Trees from Construction Damage • Critical Root Radius (CRR) • Protected Root Zone (PRZ) • Species – Specific Research • Planning/Proactive • Dr. Gary Johnson, UMN • www.forestry.umn.edu

  8. Soil Penetrometer • Resistance/Compaction • Affordable • Portable

  9. Planting • B & B • 90% Street Tree Plantings • Field Grown • Dug & Wrapped

  10. 80% Landscape Tree Problems Originate Below Ground Dr. G. Watson

  11. Flare Visibility? • Uppermost Structural Roots Within 1-3” of Soil Surface, 3-4” From the Stem • Excess Soil… Photo credits: www.mortonarb.org

  12. 4 Yrs. Acer spp. 50-75% of Trunk Dia. Encircled with Girdling Roots (20% control) • “Buried” Trees = significantly more susceptible to root pathogens, insects and feature a reduced life expectancy • http://www.mortonarb.org/deeptree • roots/land_established.html Photo credit: www.mortonarb.org Photo credits: C.Wells www.mortonarb.org

  13. Limiting Factor of Urban Trees is • Space to Develop Healthy Root System • Avg. Street Tree Lives 5-15 Years (Bassuk) • Less than 10 Years (Moll) • Avg. Lifespan of Car is 13 + Years (DOT)

  14. Important “Local” Modifications • Tree pit = 60 cu.ft. – 150 cu.ft. 16 Square Feet 25 Square Feet Photo credits: Mr. J. Nicoletti, Commissioner of Public Works The City of White Plains 49 Square Feet

  15. Photo Credit: Color Landscapes www.colorlandscapes.com Photo Credit: Green-fab.com Silva Cells (Suspended Pavement) CU Structural Soil

  16. Monitor Your Tree Populations www.forestryimages.org www.dec.ny.gov/press/68420.html

  17. For More Information… • www.hort.cornell.edu/uhi • Dr. N. Bassuk • www.mortonarb.org • Dr. G. Watson • www.forestry.umn.edu • Dr. G. Johnson • Hudson Valley SWAT • S. Mallozzi (sdm10@cornell.edu) • Cornell Coop. Extension • Westchester County • 914-285-4640 • rwh26@cornell.edu

More Related